Testing the TK Tar Baby

[TinselKoala]

Hi Tk,

Here is another 555 timer circuit that was hidden in plain sight on the internet .... with a 5% to 95% duty cycle .... don't tell everyone where it is. 

Cheers,
Fuzzy

Heh... thanks, Fuzzy.

I just happen to have a copy of Forrest Mims' "Engineer's Mini-Notebook" volume on the 555.... lots of top secret information in there !

And I made a great score yesterday at the used bookstore: a copy of the third SAMS edition of the book "IC Op-Amp Cookbook" by Walter Jung. A classic reference and in excellent shape. Seven chapters of application circuits of common op-amps.

[MileHigh]

You are a Seventies nerd if you had a copy of Don Lancaster's CMOS Cookbook.

I recall all of the National Semi. 'blue' books.  I think there was one dedicated to op-amp application notes.  They were really good too.  Adders, subtractors, integrators, differentiatiors, low-pass filters, band-pass filters, high-pass filters, comparitors, oscillators, quadrature oscillators.... Wet dream material!   

[picowatt]

MH,

Hey, be kind, the pages may be yellowing, but all those books still reside on a shelf here!

And MH, don't you dare start giving up on analog scopes, I won't permit it.  It happened to audio, it is not going to happen to my bench!!!!  An 8-10 bit digital can't hold a candle to a good analog.  I still use old analogs with cursors and love them.  I only use digital here for hi res FFT's so my PC scopes are all 16 bit.  I routinely need to see out to a few meg at THD's of close to (or even below) -100dB (yes, that is .001% and I have the generators to do so as well!).  I  suppose I could live with a 12 bit digital scope for most things, but at that res and at any real bandwidth, they are very pricey.  I have used 8 bit DSO's and even some LeCroy's, and hated dealing with 8 bit, particularly for non-repetitive signals and if looking at/for noise.

PW

[picowatt]

MH,

As well I have maintained my full set of "blue books".  I have an entire library of now defunct data books that for some reason I just can't bear to send to recycle.  Can we say Intersil, for example?  At some point I'll decide the space they take up is better spent otherwise.  Everything today is a PDF from a mfg web site, and actually, quite a bit handier.

TK, apologies for the off topic..

PW

[TinselKoala]

How can this be off topic? I have my CMOS and TTL cookbooks at the other undisclosed location....
and my sophomore EE textbook "Circuits Devices and Systems" by Ralph Smith close at hand on the shelf over there.
And here's a couple of little toys that I often sometimes use: